Incubator-regulator.



L. F. HARRIS i1 VV. L. WILLIAMS.

iNCUBATOR REGULATOR.

APPLICATION man 1uLY 25.1916.

11.?3539593?. mente@ Jan. 15, 1918.

2 SHEETS-SHEET 1.

L. F. HARRIS l W. L. WILLIAMS. iNcuBAToR REGULATOR.

APPLICATION FILED JULY 25.1916. Lg. Meme@ JM. 15, m8.

2 SHEETS-SHEET 2.

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Y LESTER F.Tl A.`i3IEIS AND WALTER L. WILLIAMS, k,()i CLEIBRNE, TEXS.

'INCUBATOR-REGULTOR.

Specification of Letters-lateiitI Patented ellilli llg 'llilli i .iipplication filedvJ'uly 25, 1916. -Scria1;No. 111,216.7.

ZbaZZ witomz't may concern Be it known that we, L Us'rna F. ,HARRIS and `lVALTER L. ViiLraMscitizens of the has specialreference to an automatici-egulator ,t'or the flame fotan. incubator or other heating lamp. 1

One important object of the invention is to provide an improved and sinipliiied construction of devices ofthischaracter.

Ansecond important object of the invention iswto provide an improved regulator arranged toraise or lower the wick of an incubator lamp in accordance with the heat in the incubator itself, the wick being loweredwhen the heat is excessive, and raised when .the heat diminishes below a certain point.

A-third important object of the invention is to `provide a device of this character Qf'viinproved constructionA arranged to permit regulation ofthe Haine independently lofithe heat controlledinemberof the device.

A fourth important object of the invention is to provide an improved general construction of incubator for'use in connection with thisregulator.

iVith the above and other objects in ,vie-w, as will be hereinafter apparent the invention consists in general of certain novel details of construction and combinationsof parts Ahereinafter fully described, illustrated in the accompanying drawingggs,` and specifically claimed.

In the accompanying.drawings,like characters of ,refe-rence `indicate ilike parts in the Several views, rand `Figure '1 is a front view of the incubator with the door raised.

Fig. 2 isa section `on itheline .2-2 of Fig. 1.

Fig 3 is a section on the line 3-3 of Fig. 1.

4 is a section on the line Jr-.4 of

Fig. 5 is a detail section on the line 5`-5 .0f Figfi.

VYigmisa detail section 0n theline G56 of Fig. 1.

In the embodiment of theiuvention here in illustrated there is v,disclosed an incubator having acasinglO provided with front and rear doors 11 land 12 respectively. This casing 10 is preferably supported on legs 13 and-eXtending up through-the `center ot' the casing is a chimney 14 havingbpenings 15 just above the Viocr ot' the casing so that the Yheated air and products of combustion inay'pass out of Ythese openings Vinto such casing. Mounted on the top of the casing 10 is a bracket 16 whereto is hinged an arm 17 which vextends over the top of thechimney 11 and is provided with a circular damper 1S, the hinge connection permitting the damper to `be .raised or lowered with respectto the top of the chimney 14,. In order to hold the arm 17 in adjustedposition there is provided a thumb-screw 19 which passes through the arm and bears against the top of the casing. Thus, when the thumb-screw is screwed down the arm 17 will be lifted and the damper 18 raised, while, when the thumb-screw is screwed in a reverse direction the arm 17 will be permitted to fall and consequently theldamper 1 8 will be moved close to the. top `of thechininey 18. By this means theV quantity of the heated 4air and products of combustion that `escape through the openings 15 may be regulated.

Beneath the casing `1 0 there is provided a lamp having a body 20 and burner V21. This lamp is connected to the chimney 14 by a chimney 22 preferablyof metal with a sight opening in one side covered-hy mica or other like materials. This burner 21 is pron vided with a wick raising and lowering 4shaft 23uhaving the usual thumb-nut 24e on one end.

Mounted within thecasing 10 is a bracket 25 whereto is fixed anfexpansionmember26 here shown as consisting of the usual mercury expansionrell. Secured to one end of the bracket 25 is a depending bracket 2? is an arm 28 against lwhich aste1n 29 on the cell 26 bears so that as the cell expands the a spring 30, the other end of said spring and pivoted -to this dependingbraclret QT being connected to the bracket 25 so that vas the ce'llQG contracts the spring 30 will `cause the arm :2S to raise. adjacent thefree end thereof is a rod 31 and this rod extends down through the bottom of the casing 10. Mounted on thejrod 3 1gis a sleeve 32 which is slidable on said rod and isheldin-adjusted position by means 4of a thumb-screw 33. AFixedly connected to the sleeve 32 is a link 3l which has a -bifurcated lower end as clearly shown in the drawings. On the bottom of thecasing 10' is a bracket 35 liXed to which is a parallelbear# ing member 3G andthrough this bracket and the bearing member extends a shaft 37 which forms a continuation of the shaft Q3, being braced or otherwise iixedly secured thereto. Fixed upon this shaft 37 between the bracket 35 and the member 3 6 is a pinion 38. Extending between the bracket 35 and the member 36 is a second shaft 39 and on this second shaft is pivoted a segmental gear 40 which meshes with the pinion 3S so that as the gear is rotated about its pivot shaft 39 the pinion 3S will be rotated and the lamp wick raised or lowered in accordance with the direction of movement of such gear 40. The forked lower end of the link 34- straddles the upper part of the gear 4l() and is aivoted thereto. v

n the operation of the device, if the heat in the incubator becomes greaterthan that desired the expansion of the member 26 will cause depression of the arm 28 and this lin turn will act upon the rod 31 to move said rod downward. T he sleeve 32, being locked to the rod 31, by the thumb-screw 33 will force the link 34 downward and this in turn will move the segmental gear flO downward so that the pinion 38 and shaft 23 will rotate in a direction which will lower the lamp wick. lf the temperature in the incubator becomes too cool the expansion member i6 will' contract and this will permit the spring 30 to raise the arm 23 and the reverse of the foregoing operation will take place, the wick being raised. It will be observed that the sleeve 32 maybe released from the rod 3l and moved up and down independently of the movement of said rod so that the height of the wick majT be adjusted to start with before tightening the set sc rew 33 to cause automatic regulation of such wick. By means of this arrangement the wick may be trimmed at any time desired and then brought back roughly to the proper height andthe sleeve 32 locked in position. The automatic regulator will then take care of the balance of the adjustment so that it will be unnecessary to adjust the wick at'the 'exact temperature desired.

Copies ot `this patent may be obtained `for Pivoted to the `arm 28 There has thus been provided a simple and efficient device, of the kind described and for. the purpose specified.

Itis obvious that `many minorchanges "may be made in the' form and'construction of the invention without departing from the material principles thereof. 1t is not therefore desired to confine the invention tothe eXact forni herein shown and described but it is wished to include all such as properly come within the scope claimed. Having thus described the'invention, what is lclaimed as new, is: l, `1. In combination'with aheated chamber and its lamp, a regulator for said lamp comprising a bracket depending from said `heatf ed chamber, and forming a bearing for one end of a wick raising shaft, a gear fixedly secured to the wick raising shaft', a frame supported by said bracket, one endV ofwhich forms a shaft, a segmental gear mounted on f A said lastmentioned shaft and meshing with t ie gear on the wick raising shaft, a thermal expansion member arranged within the heat chamber, a pivoted member engaging the thermal expansion member, resilient means connecting the free end of the pivoted member with one of the walls of the heat chamber, and means connecting thevpivotedl member, with the segmental gearV member for operating the wick raising shaft up-on operation of the thermal expansion member.`

2. In combination with a heated chamber and its lamp, a regulator for said lamp comprising a bracket depending from said heated chamber, and vforming a bearing for one end of a wick raising shaft, a gear ixedly secured to the wick raising shaft, a frame supported` by said bracket, one end 'of which forms a shaft, a segmental gear mounted on said last mentionedV shaft and meshing LUsTER r. HARRIS. p WALTER L. XVILLIAMS.

Witnesses: Y Y' E. L. STORALL, L. I. BAnnow.

five cents leach. by addressing the Commissioner of Patente, Washington, D. C. I i 

